<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        {{ text}}
        <button v-on:click="fanzhuan">反转世界</button>
    </div>
    <script src="../vue.js"></script>
    <script>
        const app = new Vue({
            el:'#app',
            data:{
                text:"Hello,World"
            },
            methods: {
                fanzhuan(){
                  this.text =   this.text.split('').reverse().join('')
                }
            },
        })
    </script>
</body>

</html>